Use PartImage to backup and restore Ubuntu system

This summary is based on this article.

1. This tutorial assumes that you have a Ubuntu live CD and somewhere you can save the partition (an external hard drive or another partition).
2. boot up Ubuntu with the live CD.
3. List available partitions
   $ sudo fdisk -l
4. Make sure the source partition (for example: /dev/sda1) is not mounted, and the destination partition (for example: /dev/sda5) is mounted.
5. If necessary, can use software 'pysdm' to mount/unmount a partition.
   $ sudo apt-get install pysdm
   For example, with pysdm, we can mount '/dev/sda5' to '/media/sda5'
   
6. Install PartImage
   $ sudo apt-get update
   $ sudo apt-get install partimage
   
7. Run PartImage
   
   
   
   Select '/dev/sda1' ==>partition to save/restore
   Type '/media/sda5/foldername/filename' ==>Image file to create/use
   Then follow the window to proceed until done.
   Note: Keep in mind, though, that the backup will save only the used space on the partition
   Note: ' F5' for next step, 'F6' for exit, 'Space' for changing value, 'Arrows' for navigation.